Transmission-gearing for motor-vehicles.



R. HUIT. TRANSMISSION GBARING FOR MOTOR VEHICLES.

APPLICATION FILED MAY 6, 1909.

Patented July 23,V 1912.

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APPLICATION FILED MAYG, 1909. 1,033, 102I Patented July 23, 1912.

` 2 SHEETS-SHEET 2.

f scope of my invention will ybe more fully iin-" provided with gears. 26 and' 27. A'sle'eve28- 'To all wzomrit may concern;

invITED sTATEs. PATENT oEEIoE..

EUssELL HUFF, oF DETROIT, MICHIGAN, ASSIGNOR, BY MEsNE AssIGNIIENTsTo PACKARD MOTOR CAR COMPANY, 0F DETROIT, IVIICI-IIGnnAhT,- A CORPORATION: OF

MICHIGAN. L

'TRANSMISSION-GEARING FOR MOTOR-VEHICLES.

Specification f Letters Patent. Patented July 23, 1912. I

O Appiication aied may s, 1909. sriai No. 494,456.

Be it. known that I, RUSSELL HUFF, citizen of the.United States, and resident lof Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Transmission-Gearing tor Motor-Vehicles, of which the following 1s a specification.

This Invention relates ,tor transmission gearing, and particularly to transmission gearing for nio-tor vehicles for transmitting the power from the motor shaft to thelrear axle. l .1 "The objects of the invention are as follows: to construct. the change speed mecha-y nism and in particular a three-speed selec `tue speed transmission mechanism so that itwill be compact and in particular compact axially of the shaft.s;.to provide a novel form of thrust bearin'g'for the power shaft which receives the thrust in both directions; and toprovidea novel form of-three-piece casing or housing for the] change speed and differential gears.

The nature; characteristic features and ter-shaft .15 is mounted` in bearings in thej casing A. The main driving shaft 16 which' connects with the motor is located in axial alinement withthe shaft 14.

Referring to Fig. l: the shaft .16 is provided witli a flangeA 17 to whiehsis bolted gear 18 which meshes lwith the'gear 19 on counter-shaft 15. 'An -overhung gear 21 `is mounted on the shaft-15 and is connected to` al flange 2 0 onsaidshaft by means of bolts 22 extending throughthe websv in the gears 19 and 21 .and the'flange 20.7 Tlieoverhung gear is provided on its internal'snrface with shengthenmg'ribs 24 and on its extreme sur-V face with spur teeth 23. A sleeve 25 is.slidingly mounted on the counter shaft -15"`and is is slidingly m unted on the shaft 1-1 so as to turn therewith. This sleeve is provided with a gear 29 ywhich has external teeth to cooperate with the teeth 23 and internal teeth 30 to cooperate with the teeth on the gear 18. Agear 31 is bolted to the flange 32 on shaft 1-1. .A sliding'sleeve 33 provided with a .y

. gear 34 is mounted upon a second counter shaft and this sleeve with its gear is/connected with sleeve 25 so as to slide therewith. The gear 3l meshes with 27.

The first or low speed is obtained by sliding gear 26 into engagement with 31; the

second speed by sliding gear 29 into engagement with the/gear teeth'23; and the third or direct drive is obtainedby sliding gear 29 into engagement with gear 183 and reverse by sliding 27 and 34 to left so that 34:.

engages with 31. Shafts 14 and 15 are either square in cross section or lprovided with a key so that the sliding sleeves 25 and 28 .are splined thereon. Vhen sleeve 25 is moved to the left,`the gear 26 telescopes with th'e overhung gear on the gear. It is to be noted howeverv that since the lsleeve 25 is splined on the shaft 15 these strengthening ribs do not act as gear teeth, but merely as strengthening ribs.

They take in loosely between the teeth and' v21, the ribs 24 taking in between thev teeth".

do not contact therewith, so they may be i left in a rough condition. Where the additional strength is notl required-the interior of the overhung gear may be left perfect-ly smooth by dispensing with the ribs 24.- The .function of said ribs-24 is therefore differen t fromthe function of the teeth 30 on the gear 29 which are used for driving pur- ;poses only.

, It will bev noted that the teeth on gear 27 do not mesh with teeth on gear 3l. Therefore when the sleeve 25 is moved to the left the gear. 27 will drive gear 31 through gear 34 in the reverse direction.

' -By means of the construction as shown in" Fig. 1, the llength-of the change speed casing is decreased so that the distance between the o l'itside'gears on theshaft 16 and its alined shaft 14y is approximately equal to the width of tive normal gear-faces plus the clearance betweenthe different gears.

Referring to Fig. 1. 53 is an externally' threaded sleeve screwed into. the lug 60 in jthe casing,.the sleeve being held `in locked Aposition by a locking device 61.

sleeve is provided on its internal surface of the threaded nut 65.\ The roller thrustY with a shoulder62. The pinion 18 is pro-y vided with a shank G8 which surrounds the shaft 14 and extends into the sleeve 53.' The shank is provided with a number of shoulders as shown. The sleeve receives the annular roller bearing 64, the outer ring of which tightly fits the sleeve and the inner ring is secured to the shank 63 by means bearing 66 is received between the annular rings 67 and 68 and surrounds the shank 63. rThe ring 67 bears against shoulder 62 and is restrained thereby. l'llhe ring 68 is se cured in place by means of an inwardly projecting flange 69 on the threaded sleeve 70.` This sleeve 70 is held in adjusted position by means of' the locking device 71. The

- construction of the sleeve 58 and its bearings are such that the thrust of the pinion 13 and the 'shaft 14 is received in both directions through the roller bearings 66. By loosening the locking device 6l the sleeve and its attached parts may be removed as a unit.

The gear 18 has on its interior surface the roller bearingv 72 for one end of the shaft 14 and this roller bearing bears against a lug 73 on the flange 17. They shaft 15 is supported in roller bearings 78 in the supporting lug 77 in the casing and at the other end by a roller bearing 81 supported by an inwardly projecting lug 80. 74 is the counter-shaft bearing lug.

AThe end 79 of casing A has an outwardly projecting lug 82 provided with an inwardly projecting sleeve 83, webs 85 connecting this 'sleeve with the casing proper.

The sleeve 83 is provided with an enlarged portion 84 to receive the roller bearing 86. The casing 8 7 for the shaft 16 provided with flange collars 88 extends into the sleeve 83.

Referringeto Fig. 1, the end of casing A is closed by an end piece C which is at tached to the casing A and to the casing B by through-bolts 76.` The end piece C is provided with ay pair of bearing 1ugs90v which receive the lower bearing sleeves 91 for the hubs 93v of the differential housing 11, and with an end bearing lug 94 for. supporting the roller bearing 95 for the shaft 14. As shown in Fig. 1 the end piece C is provided with4 an opening 96 through which y projects the bevel gear 12.

The term roller bearing. as used in the specification and claims is used inits broadtion, a shaft, an overhung gear thereon and adapted to turn therewith, a smaller gear slidingly 'mounted on said shaft and adapted to turn therewith, said gears being constructed to telescope one within the other.

2. In transmission gearing, in combination, a shaft, an overhung gear thereon and adapted to turn therewith, a smaller gear splined to said shaft and constructed to telescope within the overhung gear, and strengthening ribs inside said overhang gear arranged to take between the teeth of said smaller gear.

3. In transmission gearing, in combination, a shaft, an overhung gear thereon and.

adapted to turn therewith, a smaller gear mounted on said shaft and adapted to turn therewith, one of said gears being splined on said shaft, wherebyl the gears are adapted to telescope one'within the other.

4. In transmission gearing, in combination, a shaft, an internallyY shouldered overhung gear thereon and adapted to turn therewith, a smaller gear mounted on said shaft and ladapted to turn therewith, one of said gears being splined on said shaft, whereby the gea-rs are adaptedto telescope one within the other, and the smaller gear arranged to take between the shoulders of said overhung gear.

5. In transmission gearing, in combination, a driving shaft, a driven shaft in alinenient therewith, a fixed gear on eaoh'of said shafts and a plurality of sliding gears cooperating with said gears, said gears being construct/ed and arranged' to .yirive` said driven shaft at three speeds, the' distance between the remote edges 'of the extreme gears onv the alined shafts being approximately equal to the aggregate width of five normal gear faces. i

6. In transmission gearing, in combinal tion, a driving shaft, a drivenshaft in alinement therewith, and a countershaft, fixed gears on saidshafts, sliding gears on saiddrlven and counter shafts, said gears being constructed and arranged to drive said zdriven 'shaft at three speeds, the distance between the remote edges ofthe extreme'gears on the alined shafts vbeing approximately equal to the aggregate width of five normal gear faces. i j

'.7. In transmission gearing, in combination, a driving shaft, a driven shaft in aline- Inent therewith, anda counter shaft, a fixed gearvon each ofsaid shafts, an overhung tion, a driving'shaft, a driven shaft in aline- .ment therewith,`an'd a counter shaft, a fixed 'to the aggregate width of ve normal gear faces.

tion, a driving shaft, a driven shaft in alinement therewith, and a counter shaft, a fixed gear on each of said shafts, an overhung gear fixed on said counter shaft, a gear splined on said counter shaft and constructed and arranged to telescope within the overhung gear.

10. -In transmission gearing, in combination, a driving shaft, a driven shaft in alineinent therewith, and a counter shaft, a fixed gear on each of said shafts, an overhung gear interiorly provided with spaced shoulders and xed on said counter shaft, a gear splined on said counter shaftv and constructed and arranged to telescope within the overhung gear, and take between the shoulders of the latter.

11. In transmission gearing, in combination, a driving shaft, a driven shaft in aline ment therewith, and a counter shaft, fixed meshinggears on the drivingand co-unter shafts, a fixed gear on the driven shaft, an overhung gear fixed on the counter shaft, a gear splined on the counter shaft, adapted to mesh with the fixed gear on the driven shaft and constructed andarranged to telescope with the overhung gear, and a gear on the driven shaft adapted to mesh with either the overhung gear or t-he gear o-n the driving shaft.

12. In transmission gearing, in combination, a driving shaft, a driven shaft, a gear fixed on the driving shaft, an overhung gear on the driven shaft, and longitudinal sliding means cooperating with the gears constructed and arranged to drive said driving shaft at three speeds, the distance between the remote edges of the gear `webs on the driving and driven shafts being approximately equal to the aggregate width of four normal gear faces.

13. In transmission gearing, in combination, a shaft, a bearing support, a thrust bearing comprising a shouldered sleeve surrounding the shaft, and a single thrust roller bearing-located between the shoulders of the sleeve and constructed and arranged to receive the thrust of said shaft in both directions.

14. In transmission gearing, in combina tion, a shaft, a bearing support, a thrust bearing comprising a sleeve provided withV 9. In transmission gearing, in combina an internal shoulder,a single thrust roller bearing adapted to rest within the sleeve.

.against the shoulder, and a threaded sleeve adapted to be screwedinto the first sleeve, said second sleeve being provided with an `annular flange adapted to abut against the rollerbearng, and said shaft being provided with shoulders adapted lto cooperate with said roller bearing, whereby said bearing is adapted to receive the thrust in both directions.`

15. In transmission gearing, the combination with change speed and differential mechanism, interconnected and arranged in proximity to each'other, and bearingsfor` said mechanisms, of two detachably connected supporting members'arranged end to end and carrying all of said bearings.

16. In transmission gearing, the combination with differential mechanism, a bevel gear mounted thereon, a driving pinion meshing with said gear, and bearingsv for said mechanism and pinion, of two detachably' connected supporting members arranged end to end and carrying all of said bearings.

17. In transmission gearing, the combination with change speed and differential mechanism, of a casing inclosing the change speeds, mechanism comprising a detachable end piece and bearings for said mechanism supported by the end piece.

18. In transmission gearing thecombina-v end piece, bearings for the change speed mechanism supported by the casing, and bearing lugs on the end piece for the differential mechanism.

19. Intransmission gearing, the combina* tion with change speed and differential -mechanism, of a casing inclosing the change speed mechanism comprising va detachable end piece,jbearings for the change speed mechanism supported by the casing, bearing lugs on the endpiece for the differential mechanism, and a detachable inclosing casnig for the differential mechanism.

20. In transmission gearing, the combination with change speed and differential mechanism, of a casing inclosing the change speed mechanism comprising a main casing with an integralA end and a detachable end piece, Iand bearings for said mechanism supported by said casing and end piece.

21. In transmission gearing, the combination with change speed and differential mechanism, of a casing inclosing the change speed mechanism comprising a main casing with an integral end and a detachable end piece, bearings for said change speed mechanism supported by said casing andv end piece,

and bearing lugs on the end piece for the differential mechanism.

22. ln transmission gearing, the combination with change speed and dnerential mechanism, of a casing inclosing the change speed mechanism comprising a main casing with anintegral end and a detachable endA piece, bearings for said change speed mechanism supported by said casing and end piece, bearing lugs on the end vpiece for the difterential mechanism, and a detachable inclosing easing for the differential mechanism secured to the change speed mechanism casing.

23. 1n transmission gearing, the combination with change speed and differential mechanism, of a casing inclosing the change speed `mechanism comprising a detachable end piece, and bearing lngs on the casing for supporting the change speed mechanism independently of the end piece. Y

Q41-, .ln transmission gearing, the combination with change speed and differential mechanism, of a easing inclosing the change speed mechanism comprising a detachable end piece, bearing lugs on the easing for supporting the change speed mechanism independently of the end piece, and an additional bearing on the end piece for said change speed mechanism.

25. ln transmission gearing, the combination with change speed and differential mechanism, of a casing inclosing the change speed mechanism comprising .a detachable end piece, bearing lugs on the casing for supporting the change speed mechanism independently of the end piece, and bearing lugs on the end piece for the differential mechanism.

26. In transmission gearing, the combination with change speed and differential mechanism, of a casing inclosing the change speed mechanism comprising a detachable end piece, bearings for the change speed mechanism supported at one end by the casing and at the other by the end piece.

27. 1n transmission gearing', the combination with change speed and dilerential mechanism, of a casing inclosing the change speed mechanism comprising a detachable end piece, said end piece having an inwardly projecting portion, bearings for the change speed mechanism supported at one end by the easing and at the other by the inwardly projecting end piece.

28. In transmission gearing, a change speed gearing casing comprising a one piece body portion forming the sides, bottom and end, and a detachable end piece.

29. In transmission gearing, a change speed gearing casing comprising a one piece body portion forming the sides, bottom and end, and a detachable end piece, said body 'portion being provided with bearing lugs.

30. In transmission gearing, a change speed gearing easing comprising a one piece body portion forming the sides, bottom and 31.1n transmission gearing, a changev speed gearing casing comprising a one piece body portion forming the sides, bottom and end, said end being provided with an inwardly extending bearing sleeve, and strengthening Webs connecting the sleeve and the casing.

32. 1n transmission gearing, a change speed gearing easing comprising a one piece body portion forming the sides, bottom and end, said end being provided With an outwardly projecting bearing lug provided With an inwardly projecting bearing sleeve.

33. In transmission gearing, a change speed gearing casing comprisinga one piece body portion forming the sides, bottom and end, and a detachable end piece provided With a pair of bearing lugs.v A

34. ln transmission gearing, a change speed gearing casing comprising a one piece body portion forming the sides, bottoni and end, and adetachable end piece provided with a pair of bearing lugs, and a bearing lug extending into the casing.

35. ln transmission gearing, a change speed and differential gearing casing comprising a one piece change speed gearing casing, a detachable end for said casing, and a detachable dierential gearing casing.

36. ln transmission gearing, a change speed and differential gear casing comprising a one piece body portion forming the side, bottom and end of the change speed casing, a detachable end piece, and a detachable diflerential gear casing attached to said end piece and body portion.

37. 1n transmission gearing, a change speed and differential gear casing comprising a one piece body portion forming the side, bottom andend of the change speed easing, a detachableend piece, and a detachable differenti al gear casing attached to said en d piece and body portion, said end piece being provided with bearing lugs proj eeting into the differential gear easing.

38. 1n transmission gearing, the combination With a shaft, gearing on one end thereof, a sliding member having a plurality of gear faces arranged on the opposite end portion of said shaft, and a bearing support, of a single thrust roller-bearing adapted to receive the thrust on the shaft in both directions.

39. 1n transmission gearing, the combination with change'- speed and differential mechanism, of a casing arranged in advance of' the differential mechanism and inclosing said change speed mechanism, and bearings for said differential mechanism supported by said easing so as to form a unit therewith.

40. Intransmission gearing, the combination with change speed and differential mechanism, of a casing inclosing said change speed mechanism, and bearing lugs projecting from one end of said casing and in alinement with the change speed mechanism and forming bearings for said differential mechanism.

el. In transmission gearing, the combination With change speed and diferential mechanism including driving and driven bevel gears, of a casing inclosing said change speed mechanism, and bearings for Vsaid bevel gears supported by said casing and arranged VVinalinein'ent therewith.

4:2. In transmission gearing, the combination with change speed and differential mechanism, of a casing for said dierential mechanism, a casing inclosing said change speed mechanism and adapted to be secured to said dilerential casing, and'bearings for said dierential mechanism vsupported by the second named casing.,V l

43. In transmission gearing, the combination with change speed and. differential mechanism, of a casing for said differential mechanism, provided'rwith a-ront opening, a casing inclosing said change speed mechanism and adapted vto be lsecured to said ditferential casing atjsaid opening, and bear- Y ings for said differential mechanism supported by 'the second named casing.

44; In transmission gearing, the combina:

tion with change speed and dierential mechanism, of a' casing forfsaid. differential mechanism, provided With a front opening, a casing inclosing said change speed mechanism, bearing lugs projecting from an end Wall of sadchange speed casing and forming bearings for said differential mecha-4` nism, and means for securing saidchange speed casmg to said dierential-casing with said differential in place in its casing.

45. In transmission gearing, the combination with change speed and differential mechanisms, of casings inclosing said mechanisms, bearings for said differential mechanism supported by said change speed casing, and driven shafts extending into said differential casing and having a detachable connection with said dierential mechanism.

. 46. In transmission gearing, ,the combination with change speed and dierential ,mechanism,A of a sectional casing inclosing said change speed mechanism, bearings for said change speedy mechanism supported-by one of the casing sections and bearings for said differential mechanism supported by another of said casing sections, and drivenv shafts'having a' detachable connection With said differential mechanism.

47. In transmission gearing, the combination With change speed` and differential 1 mechanism, of detachably connected casings inclosing said4 mechanisms and permitting the 'diiierential mechanism to be Withdrawn from the dierential casing with the-change speed'casing, bearing' lu'gs projecting from an end Wall oif` saidchange speed casing, hubs for said diHer-ential mechanism supported in said lugs, and driven shafts having a detachable connection to said hubs.

48. In transmission gearing, the combination with driving and driven bevel gears, of a support having bearings for said gears and adapted to support them as a unit, a casing 'for said driven bevel gear, and means for detachably securing said support to said casing With the'driven bevel gear in its casing.

4:9. In transmission gearing, the combination with driving and vdriven bevel gears, of a support having a bearing for said driving bevel gear anda pair of spaced bearingY lugs thereon for the driven bevelgear, a casing for said driven bevel gear, and means for detachably securing said support to said casing With the driven bevel gear in its .said casing. U

50. In transmission gearing, the combination With driving and driven bevel gears, of a support having bearings for said gears and adapted to support them as a. unit, a casing for said driving and driven bevel gears, means for detachably securing said support to said casing With the bevel gears in their casing, and means for adjusting said gears'relatively to each other on said support.

l51. In transmission gearing, the combination with change speed Vand vdieren'tial mechanism; of a casing open at one end and inclosing the said change 'speed mechanism,

and an end piece forming a closure for the open end of the casing, and` bearings for the differential and change speed mechanism supported by saidl end piece.

52wk; transmission gearing, the combination with .change `speed and dierential mechanism; of a casing open-at one end and inclosing said change speed mechanism, an

end piece detachably securedv to the casingv and forming a closure for the open en thereof, and bearings for the vdierential and change speed mechanism carried by said end piece. f

Inrtestimony whereof in presence 0f two'vvitnesses..

` RUSSELL HUFF.

Witnesses:

VINCENT LINK, DoN T.. HAsrrNes. 

